Long description: Fig37113

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A diagram showing the flow in a straight river with velocity vectors and forces represented along the length.

Alt text: A diagram showing the flow in a straight river with velocity vectors and forces represented along the length.

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  • The image displays a diagram illustrating fluid flow, likely in a river, set up on an x-y coordinate system.
  • On the left and right sides of the diagram are shaded vertical rectangles labeled "bank," representing the banks of the river.
  • At several points between the two banks, discrete points are marked, with an upward-pointing arrow originating from or near each point, indicating a velocity vector, labeled with the variable "v."
  • The vertical axis is labeled "y," and the horizontal axis is labeled "x."
  • An arrow pointing upward along the y-axis is labeled "j," representing a vertical force or flux.
  • The overall setup suggests a cross-section view where flow direction is generally horizontal (along the x-axis) and vertical forces are being considered.

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